Android is a popular mobile operating system developed by Google.
Safari is a web browser developed by Apple, not an operating system.
Symbian is a mobile operating system that was widely used in earlier mobile phones.
iOS is a mobile operating system developed by Apple for its mobile devices.
Thus, the correct answer is (b) Safari.
Consider the following statements:
Which ONE of the following is CORRECT?
Consider the routing protocols given in List I and the names given in List II:

For matching of items in List I with those in List II, which ONE of the following options is CORRECT?
Identify the ONE CORRECT matching between the OSI layers and their corresponding functionalities as shown.
